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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '174') AND (category.subclass = '156') ORDER BY date ASC, patent, type

Total of 107 patents found where: Class is '174'; Subclass is '156';

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T / S Patent Date Description Patentee Category Assigned To
 1872
U 126,027 April 23, 1872 Improvement in Insulators for Telegraph Wires
Rubber coated flattened pin coated with mica for porcelain insulator with a cap
CONKLIN, JR., Joseph I.
Rubber  
 1873
U 138,512 May 6, 1873 Improvement in Insulators for Telegraph lines
Self-tying insulator with cap
MERRELL, Edward A.
Self-tying Miscellaneous  
U Specimen known 145,997 December 30, 1873 Improvement in Telegraph Insulators
Self-tying insulator with nut-like cap to secure wire in grooved base (CJ 7-2000)
FOX, Christian
HESTON, Elisha G.
Self-tying Miscellaneous  
 1874
U 146,996 February 3, 1874 Improvement in Telegraph Insulators
Cylinder split insulator with groove for wire and held by bracket
EBY, Peter
Cylinder  
 1876
U 183,865 October 31, 1876 Improvement in Telegraph Insulators
Slotted glass pin to hold wire and cap screwed to secure wire
REYNOLDS, David M.
Slotted James M. Brookfield
 1879
U 217,427 July 8, 1879 Improvement in Telegraph Insulators
Self-tying screw top
TAYLOR, Burnley
Self-tying Screw Top  
 1883
U 272,069 February 13, 1883 Insulator for Electric Conductors
Knob made of two parts to hold wire (see Dario's 1886 catalog of The Electrical Supply Co.)
MACE, Theodore
Knob  
 1884
U 294,563 March 4, 1884 Insulator for Electric Wires
Block with grooves
BEACH, William W.
Block  
U 305,020 September 9, 1884 Insulator for Lightning Rods
Lightning rod insulator of two interlocking parts
RUTH, John Anthony
Lightning Rod Insulator  
 1885
U 315,660 April 14, 1885 Supporting Insulator for Telegraph Wires
Self-tying screw top (see 1,305,168)
PRENZEL, Henry
Self-tying Screw Top  
U 332,061 December 8, 1885 Telegraph Insulator
Self-tying two piece combination insulator and pin
DEBLIEUX, Benjamin Noel
Self-tying Miscellaneous  
 1887
U 359,812 March 22, 1887 Insulator for Supporting and Holding Electric Wires
Cleat type for holding house wiring
PENNIE, Henry
Cleat 1/2 to Louis Schleip
U 375,276 December 20, 1887 Insulator
Self-tying with J slot and cap
EMERY, Edward C.
Self-tying Miscellaneous  
 1888
U 386,111 July 17, 1888 Electric Wire Insulator
Knobs paired to hold wire in trees
CUTLER, Henry H.
Knob  
 1889
U 400,552 April 2, 1889 Telegraph Wire Carrier
Two spools mounted together to secure telegraph wire between them and mounted on a crossarm
DONALDSON, Robert S.
Spool  
U 402,592 May 7, 1889 Electric Wire Insulator
Self-tying screw top
HEAVISIDE, Arthur W.
Self-tying Screw Top  
U 403,727 May 21, 1889 Insulator
Knob - self-tying
BERRANG, Jacob C.
Knob  
U 418,369 December 31, 1889 Screw Cleat for Electric Wires
Cleat (screw) to hold wire
HUFF, George E.
Cleat  
 1890
U 421,819 February 18, 1890 Insulator
Blocks (2) to hold wire and pole system
DAVY, John W.
Block  
U 426,203 April 22, 1890 Insulator
Wood tree insulator with line wire running through the center of a rod of wood
MUNSIE, James F.
Wood Thomas L. Coles
U 433,561 August 5, 1890 Cleat for Electric Wires
Cleat
FURLONG, Lawrence
Cleat Frederick Rockwell
 1891
U 444,879 January 20, 1891 Insulator
Tree hanger
ELKINS, Charles
Tree  
U 460,448 September 29, 1891 Insulator
Self-tying screw top
ROSS, Frank A.
Self-tying Screw Top  
U 463,756 November 24, 1891 Wire Hanger
Wire hanger using two spool insulators in a bracket to secure the line wire
JACOBS, Charles A.
Hanger  
 1893
U Specimen known 490,560 January 24, 1893 Insulator
Self-tying screw top
HAUTY, Auguste J.
Insulator 1/3 to John Burke
U 495,552 April 18, 1893 Insulator
Clamp type called the ""Security"" insulator. It was sold by the McLeod, Ward & Co.
HILLS, Louis
Clamp Type  
 1894
U Specimen known 522,175 June 26, 1894 Insulator
Self-tying with metal cap screws down on two metal ears to hold wire
ANDERSEN, Johan M.
Self-tying Miscellaneous 1/2 to Albert Anderson
 1895
U Specimen known 544,778 August 20, 1895 Insulator for Electric or Other Wires
CD 207.2 self-tying screw top similar to Prenzel patent (top is known but not the bottom)
SPROAT, Clinton
TARR, Edward N.
Self-tying Screw Top  
U 544,959 August 20, 1895 Insulator
Wire sheath fit in insulator groove
COLLINS, Reuben G.
FOLEY, Frank W.
Wire  
U 546,585 September 17, 1895 Insulator
Self-tying insulator (NOTI Insulator Co.)
DIBB, William
VICKERS, Albert
Self-tying Miscellaneous  
 1897
U 582,396 May 11, 1897 Insulator
Self-tying slot top
SCHNEE, William G.
Self-tying Slot Top 1/2 to John R. Dixon
U 585,026 June 22, 1897 Tieless Insulator
Self-tying screw top
DELERY, Robert
Self-tying Screw Top  
U 587,614 August 3, 1897 Electric Wire Holder
Wireholder
STRAM, Charlie J.
Wireholder  
 1899
U 619,555 February 14, 1899 Telegraph Insulator
Self-tying screw top
FRANTZ, Isaac B.
Self-tying Screw Top  
U 626,592 June 6, 1899 Insulator
Self-tying screw top
CARPENTER, John
TONN, Charles
Self-tying Screw Top  
 1900
U 660,140 October 23, 1900 Insulator
Clamp type ribbed cylindrical 2-piece
ALLEY, Cassius
Clamp Type 1/3 to C. Miller & H. Wagner
U 664,176 December 18, 1900 Electric Insulator
Knob - self-tying via screw cap
RISLER, Emil
Knob  
U Specimen known 664,432 December 25, 1900 Insulator
CD 207? (see 726,846)
RENAULT, Edward
Insulator  
 1901
U Specimen known 669,691 March 12, 1901 Insulator for Electric Wires
Two-piece self-tying insulator (found on U-184)
HARLOE, Morton
Self-tying Miscellaneous 1/2 to Wilton S. Bloes
U 671,876 April 9, 1901 Self-Locking Insulator
Self-tying screw top
BEARDSLEY, Willard P.
Self-tying Screw Top  
U Specimen known 682,831 September 17, 1901 Adjustable Insulator
Knobs with various fluted sides grouped to hold wire
MURDOCK, Henry D.
Knob  
 1902
U 697,628 April 15, 1902 Insulator and Attachment for Electric Wires
Self-tying screw top
JOHNSTON, Chauncey C.
Self-tying Screw Top  
U 704,172 July 8, 1902 Insulator
Self-tying screw top
CALVIN, James E.
Self-tying Screw Top 1/2 to Enos Cochran
U 713,904 November 18, 1902 Insulator for Telegraph Lines
Self-tying screw top
MURRAY, John E.
Self-tying Screw Top  
 1903
U Specimen known 726,846 May 5, 1903 Insulator for Electric Wires
U-181 & CD 207 (sim) self-tying screw top (see 664,432)
BELL, Joseph R.
Insulator  
U 728,442 May 19, 1903 Electric Insulator
Self-tying slot top with wedge keeper plug
BURKE, Edward J.
Self-tying Slot Top 1/2 to Cummings & Anderson
U 739,147 September 15, 1903 Insulator for Electric Wires
Self-tying screw top
BOTTJER, Herman
Self-tying Screw Top  
 1904
U 749,335 January 12, 1904 Insulator
Electrose insulator to hold heavy conductor on top (similar to 578,825)
STEINBERGER, Louis
Electrose  
U 750,722 January 26, 1904 Insulator
Metal encased insulator with metal cap to hold cable (Brown p. 25)
STEINBERGER, Louis
Metal  
U 751,739 February 9, 1904 Insulator
Clamp type
LINDAL, Peter S.
Clamp Type  
U 759,276 May 10, 1904 Insulator for Telegraph Wires
Self-tying screw top
HOBERT, Clayton
Self-tying Screw Top  
U 761,102 May 31, 1904 Insulator
Insulator for carrying heavy cables composed of cap over the top to surround the conductor to prevent sparking and electrical leakage
RANDOLPH, Leonard M.
Insulator  
U 770,962 September 27, 1904 Insulator
Self-tying groove top and screw wire clamp
GILL, Jacob F.
Self-tying Miscellaneous  
 1905
U 783,229 February 21, 1905 Locking Insulator
Self-tying screw top
STEINBERGER, Louis
Self-tying Screw Top  
U 802,397 October 24, 1905 Insulator for Electric Wires
Self-tying screw top
HUMPHREY, Clarence A.
Self-tying Screw Top  
U 803,010 October 31, 1905 Insulator
Pin with grooved insulator on top of crossarm to catch wire if it falls off of insulator
MORRIS, Elmer P.
Pin  
 1906
U 824,055 June 19, 1906 Insulator
Crossover
ACLY, Harry M.
Crossover Stanley Electric Mfg. Co.
U 840,336 December 25, 1906 Insulator
Knob
JOHNSON, Alfred
Knob  
 1907
U 849,606 April 9, 1907 Insulator
Self-tying screw top
GOLDSTEIN, Albion
Self-tying Screw Top  
U 853,744 May 14, 1907 High Tension Insulator
Multipart pintype insulator with large top skirt
STEINBERGER, Louis
Electrose  
U 861,275 July 30, 1907 Insulator for Electric Wires
Cleat - self-tying
GALLAGHER, Constantine
Cleat  
U 872,756 December 3, 1907 Insulator
Self-tying screw top
SCHERER, Frederick C.
FASHBAUGH, Henry C.
Self-tying Screw Top  
 1908
U 898,921 September 15, 1908 Insulator
Dry-spot, English screw cap design
PURVES, Thomas F.
SINNOTT, John
Dry-spot  
U 900,917 October 13, 1908 Insulator
Self-tying miscellaneous
DOBSON, Grant
Self-tying Miscellaneous 1/2 to Richard Ohloff
U 905,940 December 8, 1908 High Tension Insulator
Rainshed for conductor supported by crown
SEMENZA, Guido
Rainshed  
U 908,089 December 29, 1908 Insulator
Miscellaneous
GIBSON, James C.
Miscellaneous 1/2 to A. H. Smith
 1910
U 961,646 June 14, 1910 Insulator
Self-tying screw top with slotted top
REUSCH, William L.
Self-tying Screw Top  
U Specimen known 971,785 October 4, 1910 Tree Insulator
U-187
PIERCE, Alfred L.
Insulator 1/2 to Spalding K. Long
 1911
U 992,397 May 16, 1911 Insulator
Self-tying screw top
ANDERSON, Milton E.
Self-tying Screw Top  
 1912
U 1,016,780 February 6, 1912 Insulator
Dry-spot, screw cap design
RUTZKY, Paul
Dry-spot  
U 1,020,880 March 19, 1912 Insulator
Self-tying screw top
BOURKE, Alexander M.
Self-tying Screw Top  
U 1,043,916 November 12, 1912 Insulator
Self-tying screw top with slotted top
FARWELL, Frank M.
Self-tying Screw Top  
U 1,048,390 December 24, 1912 Insulator
Self-tying screw top with slotted top
BROWN, Fred
Self-tying Screw Top  
 1913
U 1,054,690 March 4, 1913 Electric Wire Supporting Device
U-shaped block insulator fitted into slots in the crossarm to hold telegraph and telephone lines.
HICKS, Henry A.
Block  
U 1,056,998 March 25, 1913 Insulator
Means of insulating and supporting a bussbar.
JAMIESON, Bertrand G.
KELLER, Carl A.
Bussbar  
 1914
U 1,102,656 July 7, 1914 Insulator
Insulator with hole in center and method to clamp conductor securely and the metal bracket with two bolts to secure the insulator
HADEN, Robert B.
Insulator  
 1915
U 1,146,201 July 13, 1915 Electric Wire Insulator
Self-tying screw top with slotted top
NUNN, Silvester
Self-tying Screw Top  
U 1,150,697 August 17, 1915 Insulator
Self-tying screw top
NEELY, Zen W.
LEWIS, George A.
Self-tying Screw Top  
U 1,159,409 November 9, 1915 Electric Insulator
Multipart bus bar type that can be screwed together
MULLER, Auguste R.
Multipart  
U 1,161,080 November 23, 1915 Insulator
Self-tying screw top
SPICER, Frank M.
Self-tying Screw Top  
 1916
U 1,167,208 January 4, 1916 Insulator
Self-tying screw top
OPPELT, William
Self-tying Screw Top 1/3 to Harry Gamber
U 1,168,796 January 18, 1916 Wire Holder and Insulator
Self-tying
FRENCH, Clarkson S.
Self-tying Miscellaneous  
U 1,190,286 July 11, 1916 Insulator
Self-tying non-pintype
HARLAN, Earle
Self-tying Miscellaneous  
 1917
U 1,228,349 May 29, 1917 Electric Insulator
Self-tying screw top
MUELLER, Auguste Robert
Self-tying Screw Top  
U 1,236,886 August 14, 1917 Insulator for Telegraph and Telephone Wires
Bracket composed of three grooved spool insulators arranged to allow the line wire to move horizontally to maintain the tautness of the line.
SORENSEN, Arvid C.
Bracket  
 1918
U 1,263,746 April 23, 1918 Insulator
Self-tying screw top with slotted pin for holding wire
CREAMER, William H.
Self-tying Screw Top  
U 1,266,435 May 14, 1918 Telephone Insulator
Self-tying screw top
ENGLISH, Roy W.
Self-tying Screw Top  
 1919
U 1,292,451 January 28, 1919 Line Wire Insulator
miscellaneous
FORT, Louis
Miscellaneous  
U Specimen known 1,305,168 May 27, 1919 Insulator
U-124A/B, U-182A/B self-tying screw top similar to Prenzel patent 315,660
ROBERTS, Omer L.
Insulator  
 1920
U 1,361,948 December 14, 1920 Insulator
Pin with spring wire extending beyond edge of bottom pin hole
WIDMYER, James L.
Pin  
 1924
U 1,509,074 September 16, 1924 Insulator
Self-tying clamp top
WILSON, James Leslie
Self-tying Miscellaneous  
U 1,509,645 September 23, 1924 Insulator
Self-tying
FOSS, Marvin J.
Self-tying Miscellaneous  
U 1,512,944 October 28, 1924 Conductor Holder
Device to hold conductor of telephone and telegraphs lines while line is being strung
NESS, John A.
NESS, Walter
Miscellaneous  
 1925
U 1,538,428 May 19, 1925 Pole Line Insulator
Self-tying odd insulator screwed into cut-out in top of crossarm
EMMONS, Albert F.
Self-tying Miscellaneous  
 1928
U 1,663,011 March 20, 1928 Line Conductor Insulator
Wireholder with lag screw and bolt attachment
KYLE, William D.
Wireholder Line Material Co.
U 1,675,589 July 3, 1928 Insulator
Self-tying slot top via separate piece (similar to Ransom patent)
BABINEAU, Oliver D.
Self-tying Slot Top  
U 1,684,312 September 11, 1928 Electrical Insulator
Self-tying slot top
FISCHER, John J.
PAYNE, Warren R.
Self-tying Slot Top  
 1931
U 1,810,950 June 23, 1931 Insulator
Rubber self-tying insulator
EARHART, Albert C.
Rubber  
 1932
U 1,882,486 October 11, 1932 Insulator
Tree hanger grips the wire like a hand
COLE, William H.
Tree  
 1933
U 1,920,978 August 8, 1933 Insulator
Clamp type with lag screw
FORT, Louis
Clamp Type  
U 1,927,639 September 19, 1933 Electric Insulator
Suspension insulator with hole in top to insert pin, plug to cement in the hole, and cap cemented over the top
GRAMSS, Ernst
Suspension  
 1934
U 1,954,592 April 10, 1934 Wire Support
Wireholder
KLINGEL, Edward L.
Wireholder  
U 1,961,434 June 5, 1934 Adjustable Insulator Bracket
Odd bracket for two spools to hold line wire at varying angles when mounted in a tree with a lag screw
SMEAD, Donald G.
Bracket  
 1942
U 2,304,204 December 8, 1942 Electrical Insulator
Rubber insulator for wire fence
RATZMAN, Borah B.
Rubber  
 1945
U 2,381,676 August 7, 1945 Insulator
Dry-spot with screw top
MATHEWS, Martin D.
Dry-spot  
 1947
U 2,426,466 August 26, 1947 Insulator for Electrical Wire Conductors
Cleat with V-groove to hold line wire between the two halves
MINARIK, Rudolph A.
Cleat 1/2 to Ralph E. Meech
 1955
U 2,703,820 March 8, 1955 Insulator Assembly
Odd pintype insulator with teepee top that screws down to hold a pair of wires
LAYMAN, Robert E.
Miscellaneous  

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